Operation
Range Menu
3-8
Model 42
i
Trace Level Instruction Manual
Thermo Fisher Scientific
The Range menu allows the operator to select the gas units, NO-NO
2
-NO
x
ranges, and to set the custom ranges. The screens below show the range
menu in single range mode and dual/auto range modes. The only
difference between the screens are the words “HI” and “LO” to indicate
which range is displayed. For more information about the single, dual and
auto range modes, see “
Single Range Mode
”, “
Dual Range Mode
”, and
“
Auto Range Mode
” below.
●
In the Main Menu, choose
Range
SET CUSTOM RANGES
In the single range mode, the NO, NO
2
, and NO
x
channels each have one
range, one averaging time, and one span coefficient.
By default, the three analog outputs are arranged on the rear panel
connector as shown in
Figure 3–4
. See
Table 3–2
for channels and pin
connections. Single range mode may be selected from the “
Range Mode
Select
” on page
3-74
.
Range Menu
Single Range Mode
RANGE:
>GAS UNITS PPB
NO RANGE 50
NO2 RANGE 50
NOx RANGE 50
SET CUSTOM RANGES
RANGE AVG DIAGS ALARM
RANGE:
>GAS UNITS PPB
HI NO RANGE 100
LO NO RANGE 50
HI NO2 RANGE 100
LO NO2 RANGE 50
HI NOx RANGE 100
LO NOx RANGE 50
ª
RANGE AVG DIAGS ALARM
